the quarterly journal of the gemological institute of america
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the quarterly journal of the gemological institute of america
Charting the Increasing Availability and Quality of CVD Synthetic Diamonds
Duncan Pay, Editor-in-Chief
An overview of the Fall 2016 Gems & Gemology content.
Articles (6)
Peridot from the Central Highlands of Vietnam: Properties, Origin, and Formation
Analyzes the gemological and geochemical characteristics of peridot from the Gia Lai province alongside specimens from other localities to gain insight into its formation.
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Observations on CVD-Grown Synthetic Diamonds: A Review
Explores statistical data and defining characteristics of gem-quality CVD synthetic diamonds examined by GIA since 2003.
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Bead-Cultured and Non-Bead-Cultured Pearls from Lombok, Indonesia
Documents the retrieval and testing of P. maxima cultured pearls from a Lombok hatchery.
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A New Deposit of Gem-Quality Grandidierite in Madagascar
Reviews the properties of exceptionally pure grandidierite from a new source.
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Sapphires from the Sutara Placer in the Russian Far East
Studies the formation and chemical composition of the largely unexamined alluvial sapphires from Russia’s Jewish Autonomous District.
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Reversible Color Modification of Blue Zircon by Long-Wave Ultraviolet Radiation
Determines whether blue zircon, inadvertently altered to brown by exposure to long-wave UV radiation, can be restored to its original color through the use of incandescent light.
Read MoreRegular Features
Gem News International
Global coverage of gem sources, notable new gem materials, and recent industry developments.
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MOST VALUABLE ARTICLE AWARD
Vanadium and Chromium-Bearing Pink Pyrope Garnet: Characterization and Quantitative Colorimetric Analysis
Ziyin Sun, Aaron C. Palke, and Nathan Renfro
The Chinese Soul in Contemporary Jewelry Design
Andrew Lucas, Merilee Chapin, Moqing Lin, and Xiaodan Jia
Splendor in the Outback: A Visit to Australia’s Opal Fields
Tao Hsu, Andrew Lucas, and, Vincent Pardieu
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